scholarly journals Analysis of functionally graded sandwich plate structures with piezoelectric skins, using B-spline finite strip method

2013 ◽  
Vol 96 ◽  
pp. 606-615 ◽  
Author(s):  
M.A.R. Loja ◽  
C.M. Mota Soares ◽  
J.I. Barbosa
Keyword(s):  
Sandwich Plate ◽  
Functionally Graded ◽  
Plate Structures ◽  
B Spline ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Spline Finite Strip

Transverse Vibration of Plate Structures With Elastically Restrained Edges by the Spline/Finite Strip Method

1993 ◽  
Vol 115 (3) ◽  
pp. 295-302 ◽  
Author(s):  
Abdul Hamid Sheikh ◽  
Madhujit Mukhopadhyay
Keyword(s):  
Natural Frequencies ◽  
Stiffened Plates ◽  
Plate Structures ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Spline Finite Strip ◽  
Elastically Restrained Edges ◽  
Elastically Restrained ◽  
Comparison Of The Results

The newly developed spline finite strip method has been applied to determine the natural frequencies of plates and stiffened plates with edged elastically restrained against translation and rotation. The stiffener has been modelled so that it can be situated anywhere within the plate strip. The formulation has been generalized in such a manner that it can handle general shaped plates and stiffeners having arbitrary orientation and eccentricity. A consistent formulation has been adopted to incorporate the contribution of the edge restraints in the structural stiffness matrix. Numerical examples as available in the literature are solved and the comparison of the results indicates good accuracy of the method. New results in the form of natural frequencies corresponding to the higher modes particularly for plates/stiffened plates with nonclassical boundaries are presented.

Bending analysis of functionally graded sandwich plates using the refined finite strip method

2021 ◽  
pp. 109963622110204
Author(s):  
Mohammad Naghavi ◽  
Saeid Sarrami-Foroushani ◽  
Fatemeh Azhari
Keyword(s):  
Shear Deformation ◽  
Deformation Theory ◽  
Sandwich Plate ◽  
Plate Theory ◽  
Shear Deformation Theory ◽  
Functionally Graded ◽  
Sandwich Plates ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method

In this study, static analysis of functionally graded (FG) sandwich plates is performed using the finite strip method based on the refined plate theory (RPT). Two types of common FG sandwich plates are considered. The first sandwich plate is composed of two FG material (FGM) face sheets and a homogeneous ceramic or metal core. The second one consists of two homogeneous fully metal and ceramic face sheets at the top and bottom, respectively, and a FGM core. Differential equations of FG sandwich plates are obtained using Hamilton's principle and stiffness and force matrices are formed using the finite strip method. The central deflection and the normal stress values are obtained for a sinusoidal loaded FG sandwich plate and the accuracy of the results are verified against those obtained from other theories such as the classical plate theory (CPT), the first-order shear deformation theory (FSDT), and the higher order shear deformation theory (HSDT). For the first time, this study presents a finite strip formulation in conjunction with the RPT to analyze FG Sandwich plates. While the proposed method is fast and simple, it is capable of modeling a variety of boundary conditions.

Study on Plate Straightening Process Based on Elastic-Plastic B Spline Finite Strip Method

2020 ◽  
Vol 36 (6) ◽  
pp. 737-747
Author(s):  
Jianliang Sun ◽  
Mengqian Sun ◽  
Yunjing Jiao ◽  
Yanan Gao
Keyword(s):  
Stiffness Matrix ◽  
Nodal Line ◽  
Displacement Function ◽  
B Spline ◽  
Elastic Plastic ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Linear Load ◽  
Spline Finite Strip

ABSTRACTAn elastic-plastic B spline finite strip method is proposed to investigate the continuous plate straightening process in this paper. First, the B spline displacement function that satisfies the boundary conditions of simply supported end and free end of the strip element is established, and then the stress-strain matrix is established. Second, the set method of total stiffness matrix based on B spline finite strip method for plate straightening problem is proposed, and the influence of nodal line number and strip elements number on the sparsity of total stiffness matrix is analyzed. Third, the loads on the strip elements are taken as linear uniform distribution, and the transformation matrix between the equivalent linear load and the actual load of the strip element is established. At last, the plate straightening simulation of 11 rolls straightening machine is made based on the elastic-plastic B spline finite strip method, the calculated results agree with the measured results, which approves that the elastic-plastic B spline finite strip method established can be applied to the plate straightening process.

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